Introduce list queue interface

Added mechanism for fetching queue id dynamically
and assigning into settings.

MOB-2594

GliaWidgets/Public/Glia/Glia.swift

@@ -260,6 +260,33 @@ public class Glia {
             failure: { completion(.failure($0)) }
         )
     }
+
+    /// List all Queues of the configured site.
+    /// It is also possible to monitor Queues changes with [subscribeForUpdates](x-source-tag://subscribeForUpdates) method.
+    /// If the request is unsuccessful for any reason then the completion will have an Error.
+    /// - Parameters:
+    ///   - completion: A callback that will return the Result struct with `Queue` list or `GliaCoreError`
+    ///
+    public func listQueues(_ completion: @escaping (Result<[Queue], Error>) -> Void) {
+        guard interactor != nil else {
+            completion(.failure(GliaError.sdkIsNotConfigured))
+            return
+        }
+
+        environment.coreSdk.listQueues { queues, error in
+            if let error {
+                completion(.failure(error))
+                return
+            }
+
+            if let queues {
+                completion(.success(queues))
+                return
+            }
+
+            completion(.failure(GliaError.internalError))
+        }
+    }
 }
 
 // MARK: - Private

GliaWidgets/Public/GliaError.swift

@@ -7,4 +7,5 @@ public enum GliaError: Error {
     case configuringDuringEngagementIsNotAllowed
     case clearingVisitorSessionDuringEngagementIsNotAllowed
     case startingEngagementWithNoQueueIdsIsNotAllowed
+    case internalError
 }

TestingApp/Settings/Cells/EnvironmentSettingsTextCell.swift

@@ -90,18 +90,8 @@ final class EnvironmentSettingsTextCell: SettingsCell {
     }
 
     private func layout() {
-        contentView.addSubview(stackView)
-        stackView.addArrangedSubview(segmentedControl)
-        stackView.addArrangedSubview(customEnvironmentUrlTextField)
-        stackView.translatesAutoresizingMaskIntoConstraints = false
-        var constraints = [NSLayoutConstraint](); defer { constraints.activate() }
-        let insets = UIEdgeInsets(top: 10, left: 0, bottom: 10, right: 20)
-        constraints += stackView.layoutInSuperview(edges: .vertical, insets: insets)
-        constraints += stackView.layoutInSuperview(edges: .trailing, insets: insets)
-        constraints += stackView.leadingAnchor.constraint(
-            equalTo: titleLabel.trailingAnchor,
-            constant: 10
-        )
+        contentStackView.addArrangedSubview(segmentedControl)
+        contentStackView.addArrangedSubview(customEnvironmentUrlTextField)
     }
 
     @objc

TestingApp/Settings/Cells/SettingsCell.swift

@@ -1,6 +1,9 @@
 import UIKit
 
 class SettingsCell: UITableViewCell {
+    lazy var contentStackView = UIStackView.make(.horizontal, spacing: 8)(
+        titleLabel
+    )
     let titleLabel = UILabel()
 
     init(title: String) {
@@ -21,20 +24,17 @@ class SettingsCell: UITableViewCell {
         titleLabel.font = .systemFont(ofSize: 15)
         titleLabel.textColor = .darkGray
         titleLabel.numberOfLines = 0
+        titleLabel.lineBreakMode = .byWordWrapping
+        titleLabel.minimumScaleFactor = 0.8
     }
 
     private func layout() {
-        contentView.addSubview(titleLabel)
-        titleLabel.translatesAutoresizingMaskIntoConstraints = false
+        contentStackView.translatesAutoresizingMaskIntoConstraints = false
+        contentView.addSubview(contentStackView)
         var constraints = [NSLayoutConstraint](); defer { constraints.activate() }
-        let insets = UIEdgeInsets(top: 0, left: 20, bottom: 0, right: 0)
-        constraints += titleLabel.layoutInSuperview(
-            edges: .vertical,
-            insets: insets
-        )
-        constraints += titleLabel.layoutInSuperview(
-            edges: .leading,
-            insets: insets
-        )
+        let insets = UIEdgeInsets(top: 4, left: 16, bottom: 4, right: 16)
+        constraints += contentStackView.layoutInSuperview(insets: insets)
+
+        titleLabel.setContentCompressionResistancePriority(.required, for: .horizontal)
     }
 }

TestingApp/Settings/Cells/SettingsColorCell.swift

@@ -41,40 +41,15 @@ class SettingsColorCell: SettingsCell {
     }
 
     private func layout() {
-        contentView.addSubview(sampleView)
-        sampleView.translatesAutoresizingMaskIntoConstraints = false
+        contentStackView.addArrangedSubview(UIView())
+        contentStackView.addArrangedSubview(sampleView)
+        contentStackView.addArrangedSubview(rgbTextField)
+        contentStackView.addArrangedSubview(alphaTextField)
+
         var constraints = [NSLayoutConstraint](); defer { constraints.activate() }
         constraints += sampleView.match(value: 30)
-        constraints += sampleView.leadingAnchor.constraint(
-            greaterThanOrEqualTo: titleLabel.trailingAnchor,
-            constant: 20
-        )
-        constraints += sampleView.centerYAnchor.constraint(equalTo: contentView.centerYAnchor)
-
-        contentView.addSubview(rgbTextField)
-        rgbTextField.translatesAutoresizingMaskIntoConstraints = false
         constraints += rgbTextField.match(.width, value: 100)
-        constraints += rgbTextField.layoutInSuperview(
-            edges: .vertical,
-            insets: .init(top: 10, left: 0, bottom: 10, right: 0)
-        )
-        constraints += rgbTextField.leadingAnchor.constraint(
-            equalTo: sampleView.trailingAnchor,
-            constant: 10
-        )
-
-        contentView.addSubview(alphaTextField)
-        alphaTextField.translatesAutoresizingMaskIntoConstraints = false
         constraints += alphaTextField.match(.width, value: 50)
-        constraints += alphaTextField.centerYAnchor.constraint(equalTo: contentView.centerYAnchor)
-        constraints += alphaTextField.leadingAnchor.constraint(
-            equalTo: rgbTextField.trailingAnchor,
-            constant: 10
-        )
-        constraints += alphaTextField.layoutInSuperview(
-            edges: .trailing,
-            insets: UIEdgeInsets(top: 10, left: 0, bottom: 10, right: 20)
-        )
     }
 
     @objc private func updateSample() {

TestingApp/Settings/Cells/SettingsFontCell.swift

@@ -42,17 +42,7 @@ class SettingsFontCell: SettingsCell {
     }
 
     private func layout() {
-        contentView.addSubview(pickerView)
-        pickerView.translatesAutoresizingMaskIntoConstraints = false
-        var constraints = [NSLayoutConstraint](); defer { constraints.activate() }
-        constraints += pickerView.match(value: 240)
-        constraints += pickerView.leadingAnchor.constraint(
-            equalTo: titleLabel.trailingAnchor,
-            constant: 10
-        )
-        let insets = UIEdgeInsets(top: 10, left: 0, bottom: 10, right: 20)
-        constraints += pickerView.layoutInSuperview(edges: .vertical, insets: insets)
-        constraints += pickerView.layoutInSuperview(edges: .trailing, insets: insets)
+        contentStackView.addArrangedSubview(pickerView)
     }
 
     private func selectDefaultFont() {

TestingApp/Settings/Cells/SettingsSwitchCell.swift

@@ -10,38 +10,7 @@ final class SettingsSwitchCell: SettingsCell {
     }
 
     private func layout() {
-        contentView.addSubview(switcher)
-        switcher.translatesAutoresizingMaskIntoConstraints = false
-        var constraints = [NSLayoutConstraint](); defer { constraints.activate() }
-        let insets = UIEdgeInsets(top: 10, left: 10, bottom: 10, right: 20)
-        constraints += switcher.layoutInSuperview(edges: .vertical, insets: insets)
-        constraints += switcher.layoutInSuperview(edges: .trailing, insets: insets)
-        constraints += switcher.leadingAnchor.constraint(
-            equalTo: titleLabel.trailingAnchor,
-            constant: 10
-        )
-    }
-}
-
-final class SettingsSegmentedCell: SettingsCell {
-    let segmentedControl: UISegmentedControl
-
-    init(title: String, items: String...) {
-        self.segmentedControl = .init(items: items.map(NSString.init(string:)))
-        super.init(title: title)
-        layout()
-    }
-
-    private func layout() {
-        contentView.addSubview(segmentedControl)
-        segmentedControl.translatesAutoresizingMaskIntoConstraints = false
-        var constraints = [NSLayoutConstraint](); defer { constraints.activate() }
-        let insets = UIEdgeInsets(top: 10, left: 0, bottom: 10, right: 20)
-        constraints += segmentedControl.layoutInSuperview(edges: .vertical, insets: insets)
-        constraints += segmentedControl.layoutInSuperview(edges: .trailing, insets: insets)
-        constraints += segmentedControl.leadingAnchor.constraint(
-            equalTo: titleLabel.trailingAnchor,
-            constant: 10
-        )
+        titleLabel.setContentCompressionResistancePriority(.defaultHigh, for: .horizontal)
+        contentStackView.addArrangedSubview(switcher)
     }
 }

TestingApp/Settings/Cells/SettingsTextCell.swift

@@ -2,31 +2,68 @@ import UIKit
 
 class SettingsTextCell: SettingsCell {
     let textField = UITextField()
+    var button: UIButton?
 
-    init(title: String, text: String) {
+    init(
+        title: String,
+        text: String,
+        isRequired: Bool = false,
+        extraButton: ExtraButton? = nil
+    ) {
         textField.text = text
+        if let extraButton {
+            self.button = .init(type: .system)
+            self.button?.setTitle(extraButton.title, for: .normal)
+            self.button?.addTarget(extraButton, action: #selector(extraButton.onTouchUpInside), for: .touchUpInside)
+        }
+        self.extraButton = extraButton
+        self.isRequired = isRequired
+
         super.init(title: title)
+
+        if isRequired {
+            let attributedString = NSMutableAttributedString(string: "\(title) *")
+            attributedString.setAttributes([.foregroundColor: UIColor.red.cgColor], range: .init(location: attributedString.length - 1, length: 1))
+            titleLabel.attributedText = attributedString
+        }
         setup()
         layout()
     }
 
+    // MARK: - Private
+
+    private let extraButton: ExtraButton?
+    private let isRequired: Bool
+
     private func setup() {
         textField.borderStyle = .roundedRect
         textField.autocorrectionType = .no
         textField.autocapitalizationType = .none
+        if let button {
+            addSubview(button)
+        }
     }
 
     private func layout() {
-        contentView.addSubview(textField)
-        textField.translatesAutoresizingMaskIntoConstraints = false
-        var constraints = [NSLayoutConstraint](); defer { constraints.activate() }
-        constraints += textField.widthAnchor.constraint(
-            equalTo: contentView.widthAnchor,
-            multiplier: 0.7
-        )
-        constraints += textField.leadingAnchor.constraint(greaterThanOrEqualTo: titleLabel.trailingAnchor, constant: 10)
-        let insets = UIEdgeInsets(top: 10, left: 0, bottom: 10, right: 20)
-        constraints += textField.layoutInSuperview(edges: .vertical, insets: insets)
-        constraints += textField.layoutInSuperview(edges: .trailing, insets: insets)
+        contentStackView.addArrangedSubview(textField)
+        if let button {
+            contentStackView.addArrangedSubview(button)
+        }
+    }
+}
+
+extension SettingsTextCell {
+    class ExtraButton {
+        let title: String
+        let tap: () -> Void
+
+        init(title: String, tap: @escaping () -> Void) {
+            self.title = title
+            self.tap = tap
+        }
+
+        @objc func onTouchUpInside() {
+            tap()
+        }
     }
 }

TestingApp/Settings/SettingsViewController.swift

@@ -97,22 +97,48 @@ private extension SettingsViewController {
     private func createCells() {
         siteApiKeyIdCell = SettingsTextCell(
             title: "Identifier:",
-            text: props.config.siteApiKeyId
+            text: props.config.siteApiKeyId,
+            isRequired: true
         )
         siteApiKeyIdCell.textField.accessibilityIdentifier = "settings_siteApiKeyId_textfield"
         siteApiKeySecretCell = SettingsTextCell(
             title: "Secret:",
-            text: props.config.siteApiKeySecret
+            text: props.config.siteApiKeySecret,
+            isRequired: true
         )
         siteApiKeySecretCell.textField.accessibilityIdentifier = "settings_siteApiKeySecret_textfield"
         siteCell = SettingsTextCell(
             title: "Site:",
-            text: props.config.site
+            text: props.config.site,
+            isRequired: true
         )
         siteCell.textField.accessibilityIdentifier = "settings_siteId_textfield"
         queueIDCell = SettingsTextCell(
             title: "Queue ID:",
-            text: props.queueId
+            text: props.queueId,
+            extraButton: .init(title: "List queues", tap: { [weak self] in
+                let alert = UIAlertController(title: "List queues", message: "Please choose queue", preferredStyle: .alert)
+
+                Glia.sharedInstance.listQueues { [weak self] result in
+                    switch result {
+                    case .success(let queues):
+                        queues.forEach { queue in
+                            alert.addAction(.init(title: queue.name, style: .default) { _ in
+                                self?.queueIDCell.textField.text = queue.id
+                                self?.props.changeQueueId(queue.id)
+                                alert.dismiss(animated: true)
+                            })
+                        }
+                    case .failure(let failure):
+                        let action = UIAlertAction(title: "\(failure)", style: .default)
+                        action.isEnabled = false
+                        alert.addAction(action)
+                    }
+                    alert.addAction(.init(title: "Close", style: .cancel))
+                }
+
+                self?.present(alert, animated: true)
+            })
         )
         queueIDCell.textField.accessibilityIdentifier = "settings_queueId_textfield"
         environmentCell = EnvironmentSettingsTextCell(

TestingApp/ViewController/ViewController.swift

@@ -129,10 +129,7 @@ class ViewController: UIViewController {
             // only if such engagement exists, we need
             // to configure SDK, and only then attempt
             // to end engagement.
-            try Glia.sharedInstance.configure(
-                with: configuration,
-                queueId: queueId
-            ) {
+            try Glia.sharedInstance.configure(with: configuration) {
                 Glia.sharedInstance.endEngagement { result in
                     print("End engagement operation has been executed. Result='\(result)'.")
                 }
@@ -220,7 +217,6 @@ extension ViewController {
         do {
             try Glia.sharedInstance.configure(
                 with: configuration,
-                queueId: queueId,
                 uiConfig: uiConfig
             ) {
                 completion("SDK has been configured")